Lepton anomalous magnetic moments - a theory update

Authors
Czarnecki, A Marciano, WJ
Citation
A. Czarnecki et Wj. Marciano, Lepton anomalous magnetic moments - a theory update, NUCL PH B-P, 76, 1999, pp. 245-252
Citations number
67
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
76
Year of publication
1999
Pages
245 - 252
Database
ISI
SICI code
0920-5632(199904)76:<245:LAMM-A>2.0.ZU;2-D
Abstract
Standard Model contributions to the electron, muon, and tan lepton anomalou s magnetic moments, al (g(l) - 2)/2, are reviewed and updated. The fine str ucture constant is obtained from the electron g(e) - 2 and used to refine t he QED contribution to the muon g(mu) - 2. Recent advances in electroweak a nd hadronic effects on g(mu) - 2 are summarized. Examples of "New Physics" probed by the a(mu) Brookhaven experiment E821 are outlined. The prediction for a(tau) is also given.